China Nonferrous Metallurgy

Inert anodes are an important research direction to keep primary aluminum production low-carbon, and in recent years, considerable progress has been made in the study of inert anode materials. By classifying inert anode materials, the possible corrosion reactions of different types (alloy anodes, oxide ceramic anodes and metal ceramic anodes) of inert anodes in molten salt electrolytes are reviewed, mainly exploring the chemical and electrochemical corrosion that occurs and the possible effects on the anode after corrosion. To clarify ways to increase the corrosion resistance of anodes or to reduce the corrosion rate of inert anodes in cryolite molten salt by inhibiting the corrosion reaction, the development of viable inert anodes in the aluminum electrolysis industry was promoted.